Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dinh duc cao snippets" » "dinh duc code snippets", "minh duc cao snippets", "ninh duc cao snippets", "tinh duc cao snippets", "dinh duc dao snippets", "dinh doc cao snippets", "dinh duc bao snippets"
"python using java snippets" » "python using data snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dinh duc cao snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dinh duc cao snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dinh duc cao snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dinh duc cao snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.